Wireless Charging Devices for Bio-Implanted Devices
An implanted device and wireless charging technology, applied in the field of biosensors, can solve the problems of limited practical application range, lack of wireless charging technology, difficulty in accurate positioning, etc., and achieve the effects of improving charging efficiency, compact structure, and reducing frequency
Active Publication Date: 2022-02-25
JILIN UNIV
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Problems solved by technology
However, there are still problems such as the transmission power is limited by the area of the coil, the power density is low, and it is difficult to locate accurately when the coil is coupled, and the practical application range is limited.
Therefore, there is currently a lack of safe and reliable wireless charging technology in vivo
Method used
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Embodiment Construction
[0022] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings.
[0023] see Figure 1 to Figure 5 As shown, the wireless charging device for biological implants of the present invention utilizes the magnetoelectric conversion effect of the magnetoelectric composite material to complete the conversion of magnetic energy into electrical energy in an alternating magnetic field to supply power for biological implants. It includes a main body 1 and a PDMS thin film 2 for encapsulation, the main body 1 is a heterogeneous layered magnetoelectric composite material, and is encapsulated in the PDMS thin film 2; the main body 1 is composed of a magnetostrictive material layer 104, two layers without Lead piezoelectric ceramic layer 103, two layers of copper electrodes 102, two layers of amorphous soft magnetic alloy layer 101 for generating self-bias effect, the overall shape is symmetri...
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The invention relates to a wireless charging device for biological implantation equipment, belonging to the field of biological sensors. The main body is a heterogeneous layered magnetoelectric composite material, which is encapsulated in the PDMS film; the main body is symmetrical as a whole, and the two sides of the magnetostrictive material layer are connected to the lead-free piezoelectric ceramic layer, copper electrode, The amorphous soft magnetic alloy layer is bonded, and the two lead-free piezoelectric ceramic layers are connected in series through the conductive epoxy resin and the magnetostrictive material layer. By placing it in an alternating magnetic field applied along the length direction, the magnetoelectric effect of the magnetoelectric composite material can be used to complete the conversion of magnetic energy to electric energy, thereby realizing wireless charging. The advantage is that the optimal bias magnetic field of the magnetoelectric composite material is reduced by using the amorphous soft magnetic alloy, so that the device can exert the maximum magnetoelectric conversion performance under zero bias magnetic field. The wireless charging device has the advantages of simple structure, high charging efficiency and easy miniaturization.
Description
technical field [0001] The invention relates to the field of biological sensors, in particular to a wireless charging device for biological implantation equipment. Background technique [0002] With the development of modern biomedical technology, biological implants have been more widely used. It is the product of the combination of modern and rapidly developing electronic manufacturing technology and medicine. It is placed in the human body or other biological organs through surgical implantation Internally, it can be applied to long-term real-time accurate monitoring of various physiological parameters of organisms, localized treatment of certain diseases, postoperative rehabilitation assistance, etc., and can even be used to replace some functionally disabled or weakened organs. It plays an important role in the field of modern medicine. Important role, common biological implants such as pacemakers, cochlear implants, neurostimulators, etc. [0003] However, traditional...
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IPC IPC(8): H01L41/12H01L41/113H01L41/187H01L41/20H02N2/18H02J50/10H10N35/00H10N30/30H10N30/853H10N35/85
CPCH02N2/18H02J50/10H10N30/30H10N35/101H10N30/853H10N35/85
Inventor 刘长宜李鸣鹤黄令帅马嵩宁赵宏伟何鑫宇仲宏伟李伟智
Owner JILIN UNIV